Thanks for the article. Looks like it was written in March 2016.
Any one know if anything has changed or have you visited Cambodia or Vietnam recently?
A few months ago I traveled to Vietnam by air, went to Cambodia by road (bus), back to Vietnam by road and flew back to Europe.
I also had Thailand in my planning but due to lack of time I skipped the visit
When it comes to Thailand I would consider to avoid bringing in your gear. I lived in Thailand for a couple of years before I started vaping and if there truly is a law in place that prohibits vaping then I would not take the risk...you don't want to use your holiday cash for bribing the Men in Brown
I brought a rx200 with tank / dripper to VN and Cambodia and had 0 issues in both countries. Used it on the streets and in nightclubs / (rooftop)lounges where smoking was permitted.
No issues at airport / customs
Vaping is I guess not that widely known by all locals so I did not blow the massive ones in public all the time. Quite a few youngsters approached me to check out my gear when I did make the place cloudy, which was basically all the time while enjoying the nightlife.
The only disappointment was that there are not that many shops around to buy your juice in case you need like what I've seen in the Philippines, I however traveled with 1 liter so I was fully prepped the 2 weeks I was there.
If you visit cities like HCM then you might come across Asian tourists who vape as well
1 year ago I went to Philipines and I had the same doubts/questions like what you are having. When I arrived in Manila I was quite shocked to see the number of people blowing bigger clouds than I was able to at that time
That plAce has by far more noticeable vapers than even my own country
Go and enjoy